"In the greatest difficulty." If you are convinced that "I am part and parcel of Kṛṣṇa," then even there is greatest difficult position of your life, that is surrender. You'll know Kṛṣṇa will give you protection. You try your best, you use your intelligence, but believe in Kṛṣṇa. Varasa neha pitaro nṛsiṁha. If Kṛṣṇa neglects, no other remedy can protect.
No other measure can protect. Don't think . . . suppose one is diseased; many expert physician treating him, nice medicine is offered. Is that guarantee for his life? No. That is not guarantee. If Kṛṣṇa neglects, in spite of all these good physician and medicines he will die. And if Kṛṣṇa protects him, even if he has no expert treatment, he'll still survive.
So one who is fixed up in Kṛṣṇa, fully surrendered, and one of the point of surrender is that "Kṛṣṇa will protect me," then you are happy. Just like the child—he's fully surrendered to the parents, and he is confident that, "My father is there, my mother is there," so he's happy. Kadāham aikāntika-nitya-kiṅkaraḥ (Stotra-ratna 43).
If you know that, "Somebody is there who is my patron, who is my savior," are you not very happy? But if you do everything on your own account, at your own responsibility, are you happy? Similarly, if you are convinced in Kṛṣṇa consciousness that, "Kṛṣṇa will give me protection," and if you are true to Kṛṣṇa, that is the standard of happiness. You cannot be happy otherwise. That is not possible. Eko bahūnāṁ vidadhāti kāmān (Kaṭha Upaniṣad 2.2.13).